Furnace Pulse Jet Dust Collector

The pulse-jet bag filter dust collector is constructed from a series of modular components which allows for standardization yet retains the ability to be completely flexible with selection, sizing, materials of construction, filter media, and equipment arrangement. As the dust laden air enters the dust collector housing through the inlet duct, the baffle plate located inside of the inlet act as a pre-filter and prevents re-entrainment by guiding the gas stream downward uniformly. The baffle plate deflector directs the heavier dust particles into the hopper for collection. The remaining lighter dust particles are drawn against the outer surface of the filter bags, where they are dust collector - baghouseretained and stored. Clean air then passes through the filter bags and leaves the clean air chamber through an outlet duct.

As dust accumulates on the filter bags, periodic cleaning of the bags is important in order to maintain continuous operation. This periodic cleaning of bags is achieved by introducing a timed, momentary pulse of compressed air through a specially designed blow pipe, with nozzles mounted above each filter bag. An equal amount of compressed air is blown vertically downwards into each bag. Each row of bags receives a short pulse of compressed air of approximately 100 ~ 200m sec duration. The high pressure compressed air creates a shockwave down each bag causing it to release the majority of dust formed around the outside. The removed dust is then collected in the hopper. Only a portion of the filter bags are cleaned at one time, allowing the remaining filter bags to continue their filtering action. This means equipment does not need to be shut down, in order to clean the bags.